Iran released ten US sailors on Wednesday after holding them overnight, bringing a swift end to an incident that had rattled nerves days ahead of the expected implementation of a landmark nuclear accord between Tehran and world powers.

The US Navy said it was carrying out an exercise in the Gulf, days after vowing that Iran will not be allowed to block the waterway which carries crude from the world's largest oil-exporting region.
'The aim of 'Exercise Stake Net' is to p

Fishermen and leisure sailors are being asked to help combat terrorism in the Gulf's waters. All shipping, from tiny craft to giant merchant vessels, is being urged to watch out for suspicious activity at sea.
Coalition forces patrolling